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为了发挥林地三维空间的潜在生产力,需要筛选出具有不同生物学、生态学特性的乔木树种和具有较高经济价值的灌木树种的最佳组合,实行立体经营,从而在单位面积林地上,最大限度的体现出林分的生态效益、经济效益和社会效益。本文在现有落叶松人工用材纯林进行了立体开发试验,结果如下: 一、林地概况及试验安排1986年7月,我们在通天一林场设计了两个类型的立体开发试验地,一种类型设在
In order to make full use of the potential productivity of three-dimensional woodland, we need to select the best combination of tree species with different biological and ecological characteristics and shrub species with high economic value to implement the three-dimensional management, so as to maximize the per unit area of forest land, Reflects the ecological benefits, economic benefits and social benefits of the forest. In this paper, the existing larch plantations of pure forest for three-dimensional development test, the results are as follows: First, the overview of woodland and experimental arrangements July 1986, we designed two kinds of Tongtiananyilinchang three-dimensional development test sites, a type Provided